1. School of Energy Resources China University of Geosciences Beijing 100083 China
2. Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering Beijing 100083 China
3. Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism Ministry of Education Beijing 100083 China
4. China National Offshore Oil Corporation Beijing 100000 China
5. Shanghai Branch of China National Offshore Oil Corporation Shanghai 200050 China